High Alumina Lightweight Brick / High Alumina Lightweight Insulation Brick
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Refractory Brick
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Details Introduction
It is suitable for thermal pyrolysis furnaces, hot air furnaces, and various resistance furnaces as insulation layers. It is also widely used in the metallurgical industry for various heating furnaces and coking furnaces' thermal equipment.
High-alumina lightweight bricks, also known as lightweight high-alumina bricks or high-alumina insulating refractory bricks, are mainly composed of bauxite as the primary raw material, combined with other binders, pressed into shape, and sintered at high temperatures.
The Al2O3content is greater than 48%, and its main function is to serve as thermal insulation for furnace walls.
High-alumina lightweight bricks are widely used insulating refractory bricks in the market. The characteristics of lightweight high-alumina bricks include high compressive strength, low thermal conductivity, and good insulation performance.
High-alumina lightweight bricks are mainly used in the insulation layer of furnace walls and in areas that do not experience strong high-temperature erosion from molten materials. If high-alumina lightweight bricks are used in areas that come into direct contact with flames, the direct contact temperature of the high-alumina lightweight bricks should not exceed 1350°C.
The structure of high-alumina lightweight bricks is block-shaped insulating refractory material. High-alumina lightweight bricks have good insulation effects and are suitable for thermal pyrolysis furnaces, hot air furnaces, and various resistance furnaces as insulation layers. They are also widely used in the metallurgical industry for various heating furnaces and coking furnaces' thermal equipment.
| Project |
High-alumina lightweight bricks |
||
| Al2O3% |
≥48 |
≥48 |
≥48 |
| Fe2O3% |
≤2.0 |
≤2.0 |
≤2.0 |
| Bulk density g/cm3 |
1.0 |
0.8 |
0.6 |
| Room temperature compressive strength/MPa |
≥3.5 |
≥2.5 |
≥1.6 |
| Thermal conductivity W.(m.k)% |
≤0.5 |
≤0.35 |
≤0.3 |
Key words:
High Alumina Lightweight Brick / High Alumina Lightweight Insulation Brick
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